Steven Chang, M.D.
NPI 1427214410 · Family Medicine Physician · San Francisco, CA
Steven Chang, M.D. is a Family Medicine Physician provider in San Francisco, CA (NPI 1427214410).
Provider details
- NPI number
- 1427214410
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A104265 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-30
- Last updated
- 2013-06-03
Frequently asked questions
- What is Steven Chang's NPI number?
- Steven Chang's National Provider Identifier (NPI) is 1427214410, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Chang's specialty?
- Steven Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Chang located?
- Steven Chang's practice location on file with NPPES is 201 Spear St, San Francisco, CA 94105-1630.
- What is Steven Chang's phone number?
- The practice phone number listed in the NPPES registry for Steven Chang is (415) 503-9277.
- Is Steven Chang's NPI active?
- Yes — Steven Chang's NPI (1427214410) is active in the NPPES registry as of the last update on 2013-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.